| 88604169 | DUO | Tacony Corporation | — |
| 88871661 | DUO | Ted's Bulletin Holdings, LLC | — |
| 88817599 | DUO | Dawson Precision, Inc. | — |
| 85456819 | DUO | PPG ARCHITECTURAL FINISHES, INC. | 4347479 |
| 85380002 | DUO | The New Clothesline Company, LLC | 4347304 |
| 87849409 | DUO | PERI GmbH | — |
| 88622475 | DUO | Browne, Justin | — |
| 88622423 | DUO | Browne, Justin | — |
| 85642539 | DUO | LM FARMS, LLC | 4275583 |
| 88414610 | DUO | Ted's Bulletin Holdings, LLC | — |
| 85137107 | DUO | Discovery Bay Games, Inc. | 4191250 |
| 79143000 | DUO | TradeNet AG | — |
| 87177698 | DUO | LDV Group Pty Ltd | — |
| 87615791 | DUO | Audio Precision, Inc. | — |
| 78873389 | DUO | RICHLINE GROUP, INC. | 3354144 |
| 85343641 | DUO | QUINTESS COLLECTION, LLC | 4063474 |
| 79205161 | DUO | Duo Plastics Limited | — |
| 87473663 | DUO | A&J Manufacturing, LLC | — |
| 78849962 | DUO | RICHLINE GROUP, INC. | 3341793 |
| 86226478 | DUO | Domani (HK) Limited | — |
| 86226476 | DUO | Domani (HK) Limited | — |
| 86884242 | DUO | SunBird, LLC | — |
| 85137121 | DUO | Discovery Bay Games, Inc. | — |
| 85137117 | DUO | Discovery Bay Games, Inc. | — |
| 85137103 | DUO | Discovery Bay Games, Inc. | — |
| 85459535 | DUO | Discovery Bay Games, Inc. | — |
| 73342006 | DUO | Ansell Incorporated | 1265664 |
| 86824795 | DUO | Duo Georgia, LLC | — |
| 86824727 | DUO | Duo Georgia, LLC | — |
| 86025772 | DUO | Kegel, LLC | — |
| 78492202 | DUO | The Evercare Company | — |
| 74335338 | DUO | DUO | — |
| 74329041 | DUO | Trumpf-Blusen-Kleider Walter Girgner GmbH & Co. KG | 1837932 |
| 86333439 | DUO | Uinta Brewing Company | — |
| 77524693 | DUO | Duo Magazine, Inc. | 3737768 |
| 85291952 | DUO | Perfetti Van Melle Benelux B.V. | — |
| 78937383 | DUO | DUO, s.r.o. | 3394995 |
| 77061198 | DUO | GMB, Inc. | — |
| 76713479 | DUO | SATCO PRODUCTS, INC. | — |
| 74563966 | DUO | COBE CARDIOVASCULAR, INC. | 1938183 |
| 77664142 | DUO | Bruegger's Enterprises, Inc. | 3720329 |
| 76694142 | DUO | EB Brands Holdings, Inc. | 3718933 |
| 85101001 | DUO | NetTalk.com, Inc. | — |
| 77087603 | DUO | Congoleum Corporation | 3311256 |
| 78944277 | DUO | STEELCASE INC. | — |
| 78590207 | DUO | Wertheimer, Jay | — |
| 77438735 | DUO | Source Global Enterprises, Inc. | — |
| 76231679 | DUO | Sony Kabushiki Kaisha | — |
| 75683170 | DUO | DUO, s.r.o. | 2338328 |
| 75665103 | DUO | DUO, s.r.o | 2338210 |